Basic Conditions; Define Using Demand Of User; Define Collication Method Of Unit; Model Selection Example 1: Air Conditioner + Heating Water + Floor Heating, Air Conditioner + Floor Heating - Gree GMV-S120WL/A-S Service Manual

indoor unit and outdoor unit; procedures for model selection are the same as that of
general multi VRF unit.
4) Model selection of water tank——select model of water tank according to water using
demand of user; capacity of inner-coil water tank (tie-in generator) is
200/300/350/400L.
5) Model selection of generator——select generator according to quantity of water tank;
quantity of inner-coil water tank should equal to quantity of generator; quantity of
generator should be≤maximum allowable quantity of generator for connecting outdoor
unit.
8.3 Model selection example 1: air conditioner + heating water +
floor heating, air conditioner + floor heating

8.3.1 Basic conditions

Applicable location: general villa.
Temperature conditions: take cooling load as principle of model selection --- outdoor
temperature: 35℃DB; indoor wet bulb temperature: 21℃WB.
Cooling load:
Room Room A
Load (kW)
Equivelent length of longest pipeline from outdoor unit to indoor unit: 30m, height difference
between indoor and outdoor unit: 10m (outdoor unit is in lower position).
Condition of floor heating:
Room A
2
Area m
Purpose
With floor heating
No
or not
Water using condition: there are five persons; one bathtub (with shower), two showers, three
washbasins.

8.3.2 Define using demand of user

According to the above conditions we can define the using demand of user is: air
conditioner+heating water+floor heating.

8.3.3 Define collication method of unit

For defining model selection and collocation of outdoor unit, indoor unit, generator and water
tank, please refer to ―VI. Profuct model selection and collocation‖.
8.3.4 Model selection of air conditioner
According to air conditioning load of room (according to cooling load or heating load), and
then select indoor unit and outdoor unit; procedures for model selection are the same as that of
general multi VRF unit.
8.3.4.1 Initial selection of indoor unit
Due to long pipeline distance and there is a certain height difference between indoor and
outdoor unit, first user can select the indoor unit with rated cooling capacity larger than cooling
load of room, selected results are as below:
Room A
GMV5 Home DC Inverter Multi VRF Units
Room B
2 2
Room B Room C
/ /
/ /
No
Room B
Room C Room D
3 3
Room D Room E Room F
15 15
Study Guest room
Yes Yes
Room C Room D
37
Room E Room F Room G Room H
3 3 3
Room G
15 15 20
Guest Guest Main
room room bedroom
Yes Yes Yes
Room E Room F Room G Room H
4
Room H
/
/
No